/*******************************************************************************
 * Copyright 2014 United States Government as represented by the
 * Administrator of the National Aeronautics and Space Administration.
 * All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package gov.nasa.ensemble.common.type.stringifier;

import gov.nasa.ensemble.common.type.AbstractTrimmingStringifier;

/**
 * The default stringifier uses java's string printing, so it is not reversible.
 * The default stringifier is not intended to be relied on as part of normal
 * program operations.  If you find yourself looking at this class because you
 * saw a "-{" "}-" string printed in your display, you should look for an
 * incorrect type specification to StringifierRegistry.getStringifier.  If
 * your type specification is correct, you need to define a stringifier for
 * the type that you are giving, and ensure that it is registered via the
 * extension point xml in plugin.xml.
 * 
 * @author Andrew
 *
 */

public class DefaultStringifier<T> extends AbstractTrimmingStringifier<T> {

	/**
	 * Return a stub display string to stand in when a stringifier has
	 * not been defined for a given type.  Please see comments above.
	 * 
	 * @param javaObject
	 * @return stub display string
	 */
	@Override
	public String getDisplayString(T javaObject) {
		if (javaObject == null) {
			return "-{}-";
		}
		return "-{" + javaObject.toString() + "}-";
	}

	@Override
	public T getJavaObjectFromTrimmed(String string, T defaultObject) {
		return null;
	}

}
